package com.atguigu.web;

import com.atguigu.pojo.User;
import com.atguigu.service.UserService;
import com.atguigu.service.UserServiceImpl;
import com.atguigu.utils.WebUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class RegisterServlet extends HttpServlet{
    private UserService userService= WebUtils.getBean(UserService.class);
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //1.获取请求的参数
        String username = req.getParameter("username");
        String password = req.getParameter("password");
        String email = req.getParameter("email");
        String code = req.getParameter("code");

        //2.检查 验证码是否正确 ===写死，要求验证码为abcde
        if("abcde".equalsIgnoreCase(code)){
            //正确
            //3.检查 用户名是否可用
            if(userService.existsUsername(username)){
                //不可用
                System.out.println("用户名"+username+"已存在");

                //把回显信息保存到request域中
                req.setAttribute("msg","用户名已存在");
                req.setAttribute("username",username);
                req.setAttribute("email",email);

                //跳回注册页面
                req.getRequestDispatcher("/pages/user/regist.jsp").forward(req,resp);
            }else{

                //可用
                //调用service保存到数据库
                userService.registUser(new User(null,username,password,email));
                //跳到注册成功页面 regist_success.jsp
                req.getRequestDispatcher("/pages/user/regist_success.jsp").forward(req,resp);
            }



        }else{
            //把回显信息保存到request域中
            req.setAttribute("msg","验证码错误");
            req.setAttribute("username",username);
            req.setAttribute("email",email);
            //跳回注册页面
            System.out.println("验证码"+code+"错误");
            req.getRequestDispatcher("/pages/user/regist.jsp").forward(req,resp);
        }
    }
}
